Point A: Building door. Point B: Picnic Table. Goal: To sit down. Path: Run up high in straight line. - Parkour
Point A: Picnic table side 1. Point B: Picnic table side 2. Goal: Make room on side 1 for friends. Path: Vault over picnic table.

Wait, so wasn't vaulting over the picnic table the most efficient path in that scenario? Your point A and B don't have to be great distances apart. Wouldn't doing parkour mean being able to get over the picnic table in the most efficient way possible? And if so, wouldn't that require a tracuer to have a bag of tricks at his disposal to manipulate to the situation? And if he hadn't drilled those specific movements would he feel comfortable in choosing one? Why isn't practicing specific movements parkour? If they are the most efficient way to move over an obstacle and will be applicable in the future, they are a great addition to your abilities and integral to your practice of parkour in the future. Individual objects present as much potential for the application of parkour as do the linkages of many. Actually, you need to feel very comfortable in surpassing single objects to be able to get over many in a row. I don't see the obsession with what to call parkour practicing, why not call it practicing parkour, you are learning how to get over obstacles and hopefully correcting your movement each time to make it more efficient. This is parkour! You are moving efficiently and you set point A and B. To move in this way you need to know specific techniques and how to change them. So practice parkour, move efficiently and don't worry about always stringing everything together, that's not the only part of our discipline. Is a traceur not someone who does parkour? If you practice parkour and you move efficiently through the paths you choose, you're doing parkour my friend, even if point a and b are within feet of each other.

People don't practice FOR karate why practice for parkour? Why cant point A be one side of a fence and point B be the other?

I'm afraid I couldn't possibly disagree more, both figuratively and literally.

The path we take is everything. Figuratively, its all about that process that we take to become better. The only end we ever truly reach is death, if that's even a death.

Literally, going by a desired result mindset is a good way to get hurt and injured. Ends justify the means? No thank you.

Its all about the path. Efficient or not, a to b or b to a or a to z and back to j. Its a method of training in which we become better in whatever way we're aiming for. More fit, more able, more wise, more fun, more friends, whatever we're aiming for, that process that takes us to our perpetual goals is what I like.

I think you were on to something here. Reading this, I can't help but think how unsafe is the situation? Life and Death? If this is the case, you'll have the adrenaline factor like when you hit a big jump for the first time, except multiply that by a thousand.
What it will boil down to is your technique. not technique(S). Knowing how to vault or roll is fine, but when your flight instinct is kicking in the only tool you'll be able to access is muscle memory. "A rookie does something until he gets it right. A pro does it until he can't get it wrong." -Don't remember who said it but he was smarter than me.

haha cue the "Vader" theme, but seriously though, i think it's more like you have a distance between two points and if you have the right mindset, the way to get from A to B just comes naturally. i'm pretty sure that's a key point of parkour.